Spring-Loaded Check Valves:

These valves are engineered to maintain back pressure, thereby increasing the efficiency of air and vapor eliminators, and to prevent reverse flow through the meter. This ensures that the meter and all downstream components remain filled with the measured liquid, promoting accurate measurement and system integrity.

Back Pressure Valves:

Back pressure valves, also known as back check valves, are designed to prevent reverse flow of liquid through the meter. This design ensures that the meter and all downstream components remain full of the liquid being measured, maintaining measurement accuracy and system reliability.